A_oC8_64_f & a,b/a,c/a,y1,z1 --params=3.3136,3.16211974891,1.32070859488,0.10168,0.08056 & Cmca D_{2h}^{18} #64 (f) & oC8 & A17 & P & Black Phosphorous & A. Brown and S. Rundqvist, Acta Cryst. 19, 684-685 (1965) 1.0000000000000000 1.65680000000000 -5.23900000000000 0.00000000000000 1.65680000000000 5.23900000000000 0.00000000000000 0.00000000000000 0.00000000000000 4.37630000000000 P 4 Direct 0.10168000000000 0.89832000000000 0.91944000000000 P (8f) 0.39832000000000 0.60168000000000 0.41944000000000 P (8f) 0.60168000000000 0.39832000000000 0.58056000000000 P (8f) 0.89832000000000 0.10168000000000 0.08056000000000 P (8f)